Fountain-pen



(No Model.)

P. E; WIRT.

FOUNTAIN PEN.

No. 266,247. Patented Oct. 17,1882.

W ATTORNEYS.

N, Finns Plmwuma n hen Washing'nn. n. c.

Uwrran STATES PATENT rrrca.

PAUL E. \VIRT, OF BLOOMSBURG, PENNSYLVANIA.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 266,247, dated October1'7, 1882,

' Application filed April 5, 1882. (No model.)

Fig. 2 is ing-instruments in which a nib-pen is employed in connectionwith a reservoir orfountain; and it consists mainly in a duct and valveformed upon the nib of the pen for controlling the flow of ink at thepen, as hereinafter more fully set forth.

It further consists in certain details of construction, which,inconnection with the foregoing, will be fully described hereinafter.

In the drawings, Arepresents the body portion of the pen, consisting ofa hollow cylinder, preferably of hard rubber, which is provided at itsrear end with an internal-threaded portion adapted to take thecorresponding portion of the screw-head B, and at its front end with athreaded portion adapted to take the corresponding portion of the screwend 0, as shown.

(t represents a partition located near the rear end of the cylinder A,which is provided with a central openingcommunicating with the tube a,as shown.

a also represents a partition having a central opening whichcommunicates with the interior space of the cylinder forming thereservoir or fountain.

B represents the screw-head before referred to, which is provided withthe aperture I), through which air is admitted to the pen at the propertime.

7) represents a shaft rigidly secured at its rear end tothe head B, thefront end of which is provided with a cone-shaped enlargement or valve,11 as shown.

0 represents the screw end, before referred to, made preferably of hardrubber, which is provided with a conical aperture corresponding in formwith the conical head b of the shaft 1), as shown.

D represents a metallic holder fitted to the screw end, and permanentlyattached thereto, and E the pen, which is permanently secured to theholder.

0 represents a space or passage-way formed upon one of the nibs of thepen, which communicates above with the space 00 in the holder betweenthe end of the pen and the frontwall of the screw end, and below withthe duct or tube 0, as shown. 6 represents a valve or stopper upon theother nib in line opposite to the mouth of the duct or tube, whichconsists of a cylinder hold-' ing a soft-rubber plug.

The pen may be filled, the head B having first been screwed down, byremoving the screw end (Jfrom the reservoir, the latter being thensupplied with ink by a filling-. tube or other proper means.

The operation issubstantially as follows: The pen having been filled, asbefore described, it may be employed for writing by simply unscrewingthe head B and admitting airinto the reservoir. By unscrewing the head Bthe enlargement or valve b is drawn in a rearward direction, and the inkin the reservoir is thereby permitted to flow through to the pen. By thecontact of the pen with the paper the nibs are separated more or less,according to the pressure, and consequently the ink will be permitted toflow from the point of the pen, the valve 6 being removed by theseparation of the nibs from the mouth of the duct.

If desired, the metallic holder may be dispensed with, the screw end inthis case being modified to hold the pen.

Some of the advantages of this construction are as follows: By theemployment of the ductvalve on the nibs of the pen itself the flow isregulated precisely according to the necessities of the case, a heavypressure giving an increased tlow to form a broad line and a lighterpressure a less flow to form a narrow line. By the employment of thetube a in the manner described the small globules of ink which may thechamber 3 instead of being permitted to pass back through the tube, thesame being afterward released by the air-pressure t0 the reservoir. Theimproper discharge of ink from the rear end of the pen is thuseffectually prepass through the partition a will be caught in vented.hen the pen is closed it is impos- 2. The penE,havingthepassage-way0,0011]- sible for the ink to escape or the air to enter. inunieatingabove with the fountain and beco Having thus described myinventionnvhutI low with the tube a, and the valve 0 adapted claim, and desire tosecure by Letters Patent, to eiose the opening into tube a, asdescribed.

5 is- PAUL E. \VIRT.

l. A fountuinpen having an ink-duet upon itnesses: one nib and a valveupon the other, substun- R. HARRIS, tiziily as described. H. U. HOWsEn.

